Lennon Parham (born October 26, 1976) is an American actress and improvisational comedian from the Upright Citizens Brigade Theatre. With frequent collaborator Jessica St. Clair, she created and co-starred in NBC's Best Friends Forever and USA Network's Playing House. She also co-starred in the CBS sitcom Accidentally on Purpose from 2009 to 2010.
She provides the voice of Dr. Gross in the Adventure Time episodes, "Preboot" and "Hide and Seek."